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M. Ponomarjov (State Academy of Aviation Technology)
Three-dimensional collisional simulations of time-dependent stratifications and flute structure of plasma flows and wakes are performed in external magnetic fields based on the kinetic approach. The model Boltzmann equation is solved, taking into account interparticle collisions in plasma, interactions with ambient neutral particles and effects of external magnetic fields. Using this solution the analytical and numerical results are obtained which describe developing magnetic field aligned stratifications of plasma flows in Space and the upper ionosphere. For magnetic field aligned drifting velocity of the plasma flows, formation of flute structures along the edges of the flows is obtained analytically and numerically. Using the image method (-) the wakes of different objects in the ionosphere and Space are simulated. Different kinds of interactions of the ambient particles with object surfaces are considered as absorption, direct and diffuse reflection. The results describe the flute structure of wakes of objects in motion along the external magnetic fields and stratifications of wakes in different cases.
 Ponomarjov M.G., Physical Review E, 54, 5591-5598,1996.
 Ponomarjov M.G., Planetary and Space Science, 43, 1419-1427, 1995.
 Ponomarjov,M.G., Astrophys. Space Sci., Spec.issue: Proceedings of International Conference "Progress in Cosmic Gas Dynamics", 1999, Moscow (in press).
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